21’ Stumpjumper EVO thoughts

PB Forum :: Specialized
21’ Stumpjumper EVO thoughts
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flag NateMob
O+
Posted: Jun 7, 2021 at 7:56 Quote
jbrow148 wrote:
Anyone have any info as to what size mounting hardware you need for the rear shock?

Spec in the manual is:

Front Shock Eye Bolt SCR,CUST,M8x1.0x42,Chomoly

Rear Shock Eye Bolt SCR,CUST,M8x1.25x27,Chomoly


Also, Better Bolts will have Titanium versions of both in all of their 4 finishes very soon. I've used them in the past on previous builds and the quality and customer service is next level. Lifetime warranty to boot.

https://betterbolts.com/
flag ipedalhard
O+
Posted: Jun 7, 2021 at 9:26 Quote
ScaryGuiTarS wrote:
ipedalhard wrote:
I weigh 175 lb, so would say I'm right about at average rider weight. I run the DPX2 at roughly 220-235 psi. It feels decent when going down flow, even moderate tech. What I'm noticing is how it feels stiff while pedaling out of the saddle, like on flat singletrack. If I have my weight forward, the rear tire does not track the ground while rolling over roots and rocks. The coil I had on my Evil would track up, over, and down the backside of a rock. The DPX2 seems to launch horizontally off a root or rock and contact the ground several inches later... which equates to my pedal cadence getting messed up due to spinning during the time the rear tire is off the ground. If that all makes sense...
Most of that sounds like it makes sense I guess, sounds about right, the weight, psi, all that, and I trust your results and description, but I'm just experiencing the DPX2 differently. I'm feeling the rear suspension track better than you describe. Could be the CC link, riding style, etc., and I did play with my comp/rebound settings quite a bit to get it dialed in better.

The Evil I suspect WOULD indeed track the rear end differently, and they've been know to be excellent in that regard. I think Evil's unique rear suspension is superior in some ways. With my SJ I'm not having any issues with rear wheel kicking up, maybe happened once or twice?, but don't typically recognize that issue. I'm having great tracking results since installing CC link, and still getting early travel and small bump response comfortable.

I'm just a little lighter than you and running about your same PSI or sometimes a bit more, carbon frame, carbon rims. I ran at least 20psi LESS before the cascade though. Cranking the DPX2 rebound damper made a difference--less 'springy', and I even have a tendency to go just a few more psi in my tires than necessary sometimes, but that hasn't been too much an issue. During a ride I can always let a few out of the tires if I feel that helps w/the terrain.

When the ride isn't overly gnarly or techy I've even kept my comp switch on the MED setting for many miles and still feels good. Did you have this ON the bike as stock/OEM or install after market? I do have an after market that was SJ tuning I believe it's DNHM, don't know if that's significant here. I was just thinking maybe the vol spacer kit would change something for you?

~JSV

I agree, I really did enjoy that DELTA linkage the Evil had, but the Stumpjumper Evo rides much better overall. I went for a ride yesterday and slowed the rebound on the DPX2 down a couple clicks - seemed to perform better on both climbs and descents. I have the OEM DPX2 with the evo tune.

Interesting point about the climb switch... I just realized this week that the "trail" mode on the DPX2 could be the culprit. I'm starting to keep the DPX2 open for more singletrack climbs and flat singletrack - it only uses perhaps 40% travel at most (only on dips and compressions) and is much more active than when in trail mode. Trail mode to me feels like a full lockout on an X2 or DHX2. This week I plan to experiment further and nearly never use "trail" unless climbing gravel.
flag HunterBoMTB
Posted: Jun 7, 2021 at 10:48 Quote
can i make it full 27.5 with a mullet link and a 170mm fork and high rise bars ~40mm?
flag ScaryGuiTarS
Posted: Jun 8, 2021 at 11:20 Quote
ipedalhard wrote:
ScaryGuiTarS wrote:
ipedalhard wrote:
I weigh 175 lb, so would say I'm right about at average rider weight. I run the DPX2 at roughly 220-235 psi. It feels decent when going down flow, even moderate tech. What I'm noticing is how it feels stiff while pedaling out of the saddle, like on flat singletrack. If I have my weight forward, the rear tire does not track the ground while rolling over roots and rocks. The coil I had on my Evil would track up, over, and down the backside of a rock. The DPX2 seems to launch horizontally off a root or rock and contact the ground several inches later... which equates to my pedal cadence getting messed up due to spinning during the time the rear tire is off the ground. If that all makes sense...
Most of that sounds like it makes sense I guess, sounds about right, the weight, psi, all that, and I trust your results and description, but I'm just experiencing the DPX2 differently. I'm feeling the rear suspension track better than you describe. Could be the CC link, riding style, etc., and I did play with my comp/rebound settings quite a bit to get it dialed in better.

The Evil I suspect WOULD indeed track the rear end differently, and they've been know to be excellent in that regard. I think Evil's unique rear suspension is superior in some ways. With my SJ I'm not having any issues with rear wheel kicking up, maybe happened once or twice?, but don't typically recognize that issue. I'm having great tracking results since installing CC link, and still getting early travel and small bump response comfortable.

I'm just a little lighter than you and running about your same PSI or sometimes a bit more, carbon frame, carbon rims. I ran at least 20psi LESS before the cascade though. Cranking the DPX2 rebound damper made a difference--less 'springy', and I even have a tendency to go just a few more psi in my tires than necessary sometimes, but that hasn't been too much an issue. During a ride I can always let a few out of the tires if I feel that helps w/the terrain.

When the ride isn't overly gnarly or techy I've even kept my comp switch on the MED setting for many miles and still feels good. Did you have this ON the bike as stock/OEM or install after market? I do have an after market that was SJ tuning I believe it's DNHM, don't know if that's significant here. I was just thinking maybe the vol spacer kit would change something for you?

~JSV

I agree, I really did enjoy that DELTA linkage the Evil had, but the Stumpjumper Evo rides much better overall. I went for a ride yesterday and slowed the rebound on the DPX2 down a couple clicks - seemed to perform better on both climbs and descents. I have the OEM DPX2 with the evo tune.

Interesting point about the climb switch... I just realized this week that the "trail" mode on the DPX2 could be the culprit. I'm starting to keep the DPX2 open for more singletrack climbs and flat singletrack - it only uses perhaps 40% travel at most (only on dips and compressions) and is much more active than when in trail mode. Trail mode to me feels like a full lockout on an X2 or DHX2. This week I plan to experiment further and nearly never use "trail" unless climbing gravel.
I just realized something too. You mentioned about performance when shifting weight. Not only do I have the Cascade link, but I also have Deity Black Label 38mm riser bars. There's a slight 6deg rise on my Renthal stem too. These things really deter me from putting excess weight forward on the bike. Until we had this conversation I didn't really think about how that also changes the performance and/or balance of the suspension (aside from other things too).

I wonder if I rode with lower bars etc, if I'd notice differences with the DPX2 performance? I'm not say that's the "solution", just that with my riding, the bar height, CC link, flip-chip in LOW, maybe that has some bearing on it.

~JSV
flag ipedalhard
O+
Posted: Jun 8, 2021 at 13:03 Quote
ScaryGuiTarS wrote:
ipedalhard wrote:
ScaryGuiTarS wrote:

Most of that sounds like it makes sense I guess, sounds about right, the weight, psi, all that, and I trust your results and description, but I'm just experiencing the DPX2 differently. I'm feeling the rear suspension track better than you describe. Could be the CC link, riding style, etc., and I did play with my comp/rebound settings quite a bit to get it dialed in better.

The Evil I suspect WOULD indeed track the rear end differently, and they've been know to be excellent in that regard. I think Evil's unique rear suspension is superior in some ways. With my SJ I'm not having any issues with rear wheel kicking up, maybe happened once or twice?, but don't typically recognize that issue. I'm having great tracking results since installing CC link, and still getting early travel and small bump response comfortable.

I'm just a little lighter than you and running about your same PSI or sometimes a bit more, carbon frame, carbon rims. I ran at least 20psi LESS before the cascade though. Cranking the DPX2 rebound damper made a difference--less 'springy', and I even have a tendency to go just a few more psi in my tires than necessary sometimes, but that hasn't been too much an issue. During a ride I can always let a few out of the tires if I feel that helps w/the terrain.

When the ride isn't overly gnarly or techy I've even kept my comp switch on the MED setting for many miles and still feels good. Did you have this ON the bike as stock/OEM or install after market? I do have an after market that was SJ tuning I believe it's DNHM, don't know if that's significant here. I was just thinking maybe the vol spacer kit would change something for you?

~JSV

I agree, I really did enjoy that DELTA linkage the Evil had, but the Stumpjumper Evo rides much better overall. I went for a ride yesterday and slowed the rebound on the DPX2 down a couple clicks - seemed to perform better on both climbs and descents. I have the OEM DPX2 with the evo tune.

Interesting point about the climb switch... I just realized this week that the "trail" mode on the DPX2 could be the culprit. I'm starting to keep the DPX2 open for more singletrack climbs and flat singletrack - it only uses perhaps 40% travel at most (only on dips and compressions) and is much more active than when in trail mode. Trail mode to me feels like a full lockout on an X2 or DHX2. This week I plan to experiment further and nearly never use "trail" unless climbing gravel.
I just realized something too. You mentioned about performance when shifting weight. Not only do I have the Cascade link, but I also have Deity Black Label 38mm riser bars. There's a slight 6deg rise on my Renthal stem too. These things really deter me from putting excess weight forward on the bike. Until we had this conversation I didn't really think about how that also changes the performance and/or balance of the suspension (aside from other things too).

I wonder if I rode with lower bars etc, if I'd notice differences with the DPX2 performance? I'm not say that's the "solution", just that with my riding, the bar height, CC link, flip-chip in LOW, maybe that has some bearing on it.

~JSV

I'm running 20mm rise bars but 40mm stack height, so sitting quite upright. The past couple rides the DPX2 has been agreeable - not absolutely amazing but acts as an air shock should. I suppose I'm very accustomed to coil after being on one the past year. I do intend to move to coil on the stumpy, I think perfecting the rear suspension would change this bike to exactly what I want it to be. I plan to put another 300 miles on air just to solidify my opinion on the air shock
flag ennisthemenace
Posted: Jun 8, 2021 at 13:28 Quote
Is this the end of the road for my evo? :/

photo

photo
flag Chief2slo
O+
Posted: Jun 8, 2021 at 16:05 Quote
Ouch! What happened?! That makes me want to order some Kydex!
flag ennisthemenace
Posted: Jun 9, 2021 at 0:49 Quote
Chief2slo wrote:
Ouch! What happened?! That makes me want to order some Kydex!

Hairpin turn straight into a rocky drop, didn't pick up enough speed from a standstill. BB smash on the rocky ledge as I rode over it.

Not sure if it is fata for the frame, no damage to be seen internally and tap testing the sound doesn't change. Also it is not soft at the impact point and the there is no indentation.

Frame protector has a long gash in it.
flag cvoc
Posted: Jun 9, 2021 at 3:54 Quote
ennisthemenace wrote:
Chief2slo wrote:
Ouch! What happened?! That makes me want to order some Kydex!

Hairpin turn straight into a rocky drop, didn't pick up enough speed from a standstill. BB smash on the rocky ledge as I rode over it.

Not sure if it is fata for the frame, no damage to be seen internally and tap testing the sound doesn't change. Also it is not soft at the impact point and the there is no indentation.

Frame protector has a long gash in it.

Maybe have carbon repair specialist have a look at it? (assuming this is not a warranty case)
flag ennisthemenace
Posted: Jun 9, 2021 at 6:37 Quote
cvoc wrote:
ennisthemenace wrote:
Chief2slo wrote:
Ouch! What happened?! That makes me want to order some Kydex!

Hairpin turn straight into a rocky drop, didn't pick up enough speed from a standstill. BB smash on the rocky ledge as I rode over it.

Not sure if it is fata for the frame, no damage to be seen internally and tap testing the sound doesn't change. Also it is not soft at the impact point and the there is no indentation.

Frame protector has a long gash in it.

Maybe have carbon repair specialist have a look at it? (assuming this is not a warranty case)

As far as I can see Spec only covers workmanship and not accidents.
flag Chief2slo
O+
Posted: Jun 9, 2021 at 11:17 Quote
No damage inside and tap test sounds good? If it was mine I’d put the guard back on and ride it…. But I’m not advocating my poor life choices! Good luck man!
flag ennisthemenace
Posted: Jun 9, 2021 at 11:40 Quote
Chief2slo wrote:
No damage inside and tap test sounds good? If it was mine I’d put the guard back on and ride it…. But I’m not advocating my poor life choices! Good luck man!

Was feeling the same.

But haven't being getting on with the frame, these short shock strokes are no good for big lads.
flag ennisthemenace
Posted: Jun 9, 2021 at 11:41 Quote
Getting a custom rockguard the stock one is flimsy at best.
flag ennisthemenace
Posted: Jun 10, 2021 at 22:16 Quote
ennisthemenace wrote:
cvoc wrote:
ennisthemenace wrote:


Hairpin turn straight into a rocky drop, didn't pick up enough speed from a standstill. BB smash on the rocky ledge as I rode over it.

Not sure if it is fata for the frame, no damage to be seen internally and tap testing the sound doesn't change. Also it is not soft at the impact point and the there is no indentation.

Frame protector has a long gash in it.

Maybe have carbon repair specialist have a look at it? (assuming this is not a warranty case)

As far as I can see Spec only covers workmanship and not accidents.

Update, Carbon repair guy says it's just a scratch Big Grin
flag cvoc
Posted: Jun 10, 2021 at 22:48 Quote
ennisthemenace wrote:
ennisthemenace wrote:
cvoc wrote:


Maybe have carbon repair specialist have a look at it? (assuming this is not a warranty case)

As far as I can see Spec only covers workmanship and not accidents.

Update, Carbon repair guy says it's just a scratch Big Grin

That’s good news! But yeah, maybe a stronger rock guard is a good investment.

 


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